Source

SCons / src / engine / SCons / Script / SConsOptions.py

Steven Knight 6661c9e 

























Steven Knight a757ca8 
Steven Knight 6661c9e 


Greg Noel 57bd742 
Steven Knight a757ca8 

Steven Knight 6661c9e 






Steven Knight 52ff0f6 
Steven Knight 6661c9e 









Greg Noel 450d604 
Steven Knight 6661c9e 
Greg Noel 450d604 

Steven Knight 6661c9e 






Greg Noel aaec738 
Steven Knight 6661c9e 



























































Ludwig Hähne 3748966 
Steven Knight 6661c9e 


Steven Knight 4808a67 
Steven Knight 52ff0f6 
Steven Knight 6661c9e 






Greg Noel aaec738 
Steven Knight 6661c9e 






Greg Noel aaec738 
Steven Knight 6661c9e 



Greg Noel aaec738 
Steven Knight 6661c9e 



Greg Noel aaec738 
Steven Knight 6661c9e 
Greg Noel aaec738 
Steven Knight 6661c9e 






Greg Noel aaec738 
Greg Noel 450d604 
Steven Knight 6661c9e 



Steven Knight 4808a67 



Greg Noel aaec738 
Ludwig Hähne 3748966 



Greg Noel aaec738 
Steven Knight 52ff0f6 




Steven Knight 6661c9e 


Steven Knight 16adeda 





Greg Noel 450d604 
Steven Knight 16adeda 















Greg Noel aaec738 
Steven Knight 16adeda 


































Steven Knight 6661c9e 






















anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 
anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 
















Greg Noel 450d604 
Steven Knight 6661c9e 






















Steven Knight 16adeda 





Steven Knight 6661c9e 

































Greg Noel 450d604 
Steven Knight 6661c9e 




































Steven Knight a757ca8 









Steven Knight 6661c9e 

























Steven Knight a757ca8 




Steven Knight 6661c9e 
















Steven Knight a757ca8 



Steven Knight 6661c9e 




Greg Noel 450d604 
Steven Knight 6661c9e 










Greg Noel 450d604 
Steven Knight 6661c9e 














Greg Noel 450d604 
Steven Knight 6661c9e 








Steven Knight 16adeda 

Steven Knight 6661c9e 



Steven Knight 4808a67 
Steven Knight 6661c9e 






















Steven Knight a757ca8 






Steven Knight 6661c9e 




































anatoly techtoni… 332fe1b 



Steven Knight 6661c9e 



anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 

Greg Noel 450d604 
Steven Knight 6661c9e 












Steven Knight 52ff0f6 






Gary Oberbrunner beedc03 
Steven Knight 6661c9e 
Gary Oberbrunner 6664318 
anatoly techtoni… e56a9b8 
Steven Knight 6661c9e 





anatoly techtoni… e56a9b8 









Steven Knight 6661c9e 
anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 
Greg Noel 450d604 
Steven Knight 6661c9e 










anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 










anatoly techtoni… 332fe1b 

Steven Knight 6661c9e 





Greg Noel 450d604 
Steven Knight 6661c9e 




















































Steven Knight 4808a67 




Steven Knight 6661c9e 


















Ludwig Hähne 3748966 






Steven Knight 6661c9e 











































Steven Knight 4808a67 






Steven Knight 6661c9e 











Greg Noel 450d604 
Steven Knight 6661c9e 








anatoly techtoni… 332fe1b 
Steven Knight 6661c9e 


Greg Noel 450d604 
Steven Knight 6661c9e 



















Steven Knight 4808a67 

Steven Knight 6661c9e 




Steven Knight 52ff0f6 

Greg Noel 450d604 
Steven Knight 52ff0f6 

Steven Knight 6661c9e 
Steven Knight 52ff0f6 


Steven Knight 6661c9e 













Steven Knight a757ca8 



Steven Knight 6661c9e 
Rob Managan 29e7a66 
Steven Knight 6661c9e 






























































Steven Knight 9aa3f9a 




  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
#
# __COPYRIGHT__
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#

__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import optparse
import re
import sys
import textwrap

no_hyphen_re = re.compile(r'(\s+|(?<=[\w\!\"\'\&\.\,\?])-{2,}(?=\w))')

try:
    from gettext import gettext
except ImportError:
    def gettext(message):
        return message
_ = gettext

import SCons.Node.FS
import SCons.Warnings

OptionValueError        = optparse.OptionValueError
SUPPRESS_HELP           = optparse.SUPPRESS_HELP

diskcheck_all = SCons.Node.FS.diskcheck_types()

def diskcheck_convert(value):
    if value is None:
        return []
    if not SCons.Util.is_List(value):
        value = value.split(',')
    result = []
    for v in value:
        v = v.lower()
        if v == 'all':
            result = diskcheck_all
        elif v == 'none':
            result = []
        elif v in diskcheck_all:
            result.append(v)
        else:
            raise ValueError(v)
    return result

class SConsValues(optparse.Values):
    """
    Holder class for uniform access to SCons options, regardless
    of whether or not they can be set on the command line or in the
    SConscript files (using the SetOption() function).

    A SCons option value can originate three different ways:

        1)  set on the command line;
        2)  set in an SConscript file;
        3)  the default setting (from the the op.add_option()
            calls in the Parser() function, below).

    The command line always overrides a value set in a SConscript file,
    which in turn always overrides default settings.  Because we want
    to support user-specified options in the SConscript file itself,
    though, we may not know about all of the options when the command
    line is first parsed, so we can't make all the necessary precedence
    decisions at the time the option is configured.

    The solution implemented in this class is to keep these different sets
    of settings separate (command line, SConscript file, and default)
    and to override the __getattr__() method to check them in turn.
    This should allow the rest of the code to just fetch values as
    attributes of an instance of this class, without having to worry
    about where they came from.

    Note that not all command line options are settable from SConscript
    files, and the ones that are must be explicitly added to the
    "settable" list in this class, and optionally validated and coerced
    in the set_option() method.
    """

    def __init__(self, defaults):
        self.__dict__['__defaults__'] = defaults
        self.__dict__['__SConscript_settings__'] = {}

    def __getattr__(self, attr):
        """
        Fetches an options value, checking first for explicit settings
        from the command line (which are direct attributes), then the
        SConscript file settings, then the default values.
        """
        try:
            return self.__dict__[attr]
        except KeyError:
            try:
                return self.__dict__['__SConscript_settings__'][attr]
            except KeyError:
                return getattr(self.__dict__['__defaults__'], attr)

    settable = [
        'clean',
        'diskcheck',
        'duplicate',
        'help',
        'implicit_cache',
        'max_drift',
        'md5_chunksize',
        'no_exec',
        'num_jobs',
        'random',
        'stack_size',
        'warn',
    ]

    def set_option(self, name, value):
        """
        Sets an option from an SConscript file.
        """
        if not name in self.settable:
            raise SCons.Errors.UserError("This option is not settable from a SConscript file: %s"%name)

        if name == 'num_jobs':
            try:
                value = int(value)
                if value < 1:
                    raise ValueError
            except ValueError:
                raise SCons.Errors.UserError("A positive integer is required: %s"%repr(value))
        elif name == 'max_drift':
            try:
                value = int(value)
            except ValueError:
                raise SCons.Errors.UserError("An integer is required: %s"%repr(value))
        elif name == 'duplicate':
            try:
                value = str(value)
            except ValueError:
                raise SCons.Errors.UserError("A string is required: %s"%repr(value))
            if not value in SCons.Node.FS.Valid_Duplicates:
                raise SCons.Errors.UserError("Not a valid duplication style: %s" % value)
            # Set the duplicate style right away so it can affect linking
            # of SConscript files.
            SCons.Node.FS.set_duplicate(value)
        elif name == 'diskcheck':
            try:
                value = diskcheck_convert(value)
            except ValueError, v:
                raise SCons.Errors.UserError("Not a valid diskcheck value: %s"%v)
            if 'diskcheck' not in self.__dict__:
                # No --diskcheck= option was specified on the command line.
                # Set this right away so it can affect the rest of the
                # file/Node lookups while processing the SConscript files.
                SCons.Node.FS.set_diskcheck(value)
        elif name == 'stack_size':
            try:
                value = int(value)
            except ValueError:
                raise SCons.Errors.UserError("An integer is required: %s"%repr(value))
        elif name == 'md5_chunksize':
            try:
                value = int(value)
            except ValueError:
                raise SCons.Errors.UserError("An integer is required: %s"%repr(value))
        elif name == 'warn':
            if SCons.Util.is_String(value):
                value = [value]
            value = self.__SConscript_settings__.get(name, []) + value
            SCons.Warnings.process_warn_strings(value)

        self.__SConscript_settings__[name] = value

class SConsOption(optparse.Option):
    def convert_value(self, opt, value):
        if value is not None:
            if self.nargs in (1, '?'):
                return self.check_value(opt, value)
            else:
                return tuple([self.check_value(opt, v) for v in value])

    def process(self, opt, value, values, parser):

        # First, convert the value(s) to the right type.  Howl if any
        # value(s) are bogus.
        value = self.convert_value(opt, value)

        # And then take whatever action is expected of us.
        # This is a separate method to make life easier for
        # subclasses to add new actions.
        return self.take_action(
            self.action, self.dest, opt, value, values, parser)

    def _check_nargs_optional(self):
        if self.nargs == '?' and self._short_opts:
            fmt = "option %s: nargs='?' is incompatible with short options"
            raise SCons.Errors.UserError(fmt % self._short_opts[0])

    try:
        _orig_CONST_ACTIONS = optparse.Option.CONST_ACTIONS

        _orig_CHECK_METHODS = optparse.Option.CHECK_METHODS

    except AttributeError:
        # optparse.Option had no CONST_ACTIONS before Python 2.5.

        _orig_CONST_ACTIONS = ("store_const",)

        def _check_const(self):
            if self.action not in self.CONST_ACTIONS and self.const is not None:
                raise OptionError(
                    "'const' must not be supplied for action %r" % self.action,
                    self)

        # optparse.Option collects its list of unbound check functions
        # up front.  This sucks because it means we can't just override
        # the _check_const() function like a normal method, we have to
        # actually replace it in the list.  This seems to be the most
        # straightforward way to do that.

        _orig_CHECK_METHODS = [optparse.Option._check_action,
                     optparse.Option._check_type,
                     optparse.Option._check_choice,
                     optparse.Option._check_dest,
                     _check_const,
                     optparse.Option._check_nargs,
                     optparse.Option._check_callback]

    CHECK_METHODS = _orig_CHECK_METHODS + [_check_nargs_optional]

    CONST_ACTIONS = _orig_CONST_ACTIONS + optparse.Option.TYPED_ACTIONS

class SConsOptionGroup(optparse.OptionGroup):
    """
    A subclass for SCons-specific option groups.
    
    The only difference between this and the base class is that we print
    the group's help text flush left, underneath their own title but
    lined up with the normal "SCons Options".
    """
    def format_help(self, formatter):
        """
        Format an option group's help text, outdenting the title so it's
        flush with the "SCons Options" title we print at the top.
        """
        formatter.dedent()
        result = formatter.format_heading(self.title)
        formatter.indent()
        result = result + optparse.OptionContainer.format_help(self, formatter)
        return result

class SConsOptionParser(optparse.OptionParser):
    preserve_unknown_options = False

    def error(self, msg):
        # overriden OptionValueError exception handler
        self.print_usage(sys.stderr)
        sys.stderr.write("SCons Error: %s\n" % msg)
        sys.exit(2)

    def _process_long_opt(self, rargs, values):
        """
        SCons-specific processing of long options.

        This is copied directly from the normal
        optparse._process_long_opt() method, except that, if configured
        to do so, we catch the exception thrown when an unknown option
        is encountered and just stick it back on the "leftover" arguments
        for later (re-)processing.
        """
        arg = rargs.pop(0)

        # Value explicitly attached to arg?  Pretend it's the next
        # argument.
        if "=" in arg:
            (opt, next_arg) = arg.split("=", 1)
            rargs.insert(0, next_arg)
            had_explicit_value = True
        else:
            opt = arg
            had_explicit_value = False

        try:
            opt = self._match_long_opt(opt)
        except optparse.BadOptionError:
            if self.preserve_unknown_options:
                # SCons-specific:  if requested, add unknown options to
                # the "leftover arguments" list for later processing.
                self.largs.append(arg)
                if had_explicit_value:
                    # The unknown option will be re-processed later,
                    # so undo the insertion of the explicit value.
                    rargs.pop(0)
                return
            raise

        option = self._long_opt[opt]
        if option.takes_value():
            nargs = option.nargs
            if nargs == '?':
                if had_explicit_value:
                    value = rargs.pop(0)
                else:
                    value = option.const
            elif len(rargs) < nargs:
                if nargs == 1:
                    self.error(_("%s option requires an argument") % opt)
                else:
                    self.error(_("%s option requires %d arguments")
                               % (opt, nargs))
            elif nargs == 1:
                value = rargs.pop(0)
            else:
                value = tuple(rargs[0:nargs])
                del rargs[0:nargs]

        elif had_explicit_value:
            self.error(_("%s option does not take a value") % opt)

        else:
            value = None

        option.process(opt, value, values, self)

    def add_local_option(self, *args, **kw):
        """
        Adds a local option to the parser.
        
        This is initiated by a SetOption() call to add a user-defined
        command-line option.  We add the option to a separate option
        group for the local options, creating the group if necessary.
        """
        try:
            group = self.local_option_group
        except AttributeError:
            group = SConsOptionGroup(self, 'Local Options')
            group = self.add_option_group(group)
            self.local_option_group = group

        result = group.add_option(*args, **kw)

        if result:
            # The option was added succesfully.  We now have to add the
            # default value to our object that holds the default values
            # (so that an attempt to fetch the option's attribute will
            # yield the default value when not overridden) and then
            # we re-parse the leftover command-line options, so that
            # any value overridden on the command line is immediately
            # available if the user turns around and does a GetOption()
            # right away.
            setattr(self.values.__defaults__, result.dest, result.default)
            self.parse_args(self.largs, self.values)

        return result

class SConsIndentedHelpFormatter(optparse.IndentedHelpFormatter):
    def format_usage(self, usage):
        return "usage: %s\n" % usage

    def format_heading(self, heading):
        """
        This translates any heading of "options" or "Options" into
        "SCons Options."  Unfortunately, we have to do this here,
        because those titles are hard-coded in the optparse calls.
        """
        if heading == 'options':
            # The versions of optparse.py shipped with Pythons 2.3 and
            # 2.4 pass this in uncapitalized; override that so we get
            # consistent output on all versions.
            heading = "Options"
        if heading == 'Options':
            heading = "SCons Options"
        return optparse.IndentedHelpFormatter.format_heading(self, heading)

    def format_option(self, option):
        """
        A copy of the normal optparse.IndentedHelpFormatter.format_option()
        method.  This has been snarfed so we can modify text wrapping to
        out liking:

        --  add our own regular expression that doesn't break on hyphens
            (so things like --no-print-directory don't get broken); 

        --  wrap the list of options themselves when it's too long
            (the wrapper.fill(opts) call below);
 
        --  set the subsequent_indent when wrapping the help_text.
        """
        # The help for each option consists of two parts:
        #   * the opt strings and metavars
        #     eg. ("-x", or "-fFILENAME, --file=FILENAME")
        #   * the user-supplied help string
        #     eg. ("turn on expert mode", "read data from FILENAME")
        #
        # If possible, we write both of these on the same line:
        #   -x      turn on expert mode
        #
        # But if the opt string list is too long, we put the help
        # string on a second line, indented to the same column it would
        # start in if it fit on the first line.
        #   -fFILENAME, --file=FILENAME
        #           read data from FILENAME
        result = []

        try:
            opts = self.option_strings[option]
        except AttributeError:
            # The Python 2.3 version of optparse attaches this to
            # to the option argument, not to this object.
            opts = option.option_strings

        opt_width = self.help_position - self.current_indent - 2
        if len(opts) > opt_width:
            wrapper = textwrap.TextWrapper(width=self.width,
                                           initial_indent = '  ',
                                           subsequent_indent = '  ')
            wrapper.wordsep_re = no_hyphen_re
            opts = wrapper.fill(opts) + '\n'
            indent_first = self.help_position
        else:                       # start help on same line as opts
            opts = "%*s%-*s  " % (self.current_indent, "", opt_width, opts)
            indent_first = 0
        result.append(opts)
        if option.help:

            try:
                expand_default = self.expand_default
            except AttributeError:
                # The HelpFormatter base class in the Python 2.3 version
                # of optparse has no expand_default() method.
                help_text = option.help
            else:
                help_text = expand_default(option)

            # SCons:  indent every line of the help text but the first.
            wrapper = textwrap.TextWrapper(width=self.help_width,
                                           subsequent_indent = '  ')
            wrapper.wordsep_re = no_hyphen_re
            help_lines = wrapper.wrap(help_text)
            result.append("%*s%s\n" % (indent_first, "", help_lines[0]))
            for line in help_lines[1:]:
                result.append("%*s%s\n" % (self.help_position, "", line))
        elif opts[-1] != "\n":
            result.append("\n")
        return "".join(result)

    # For consistent help output across Python versions, we provide a
    # subclass copy of format_option_strings() and these two variables.
    # This is necessary (?) for Python2.3, which otherwise concatenates
    # a short option with its metavar.
    _short_opt_fmt = "%s %s"
    _long_opt_fmt = "%s=%s"

    def format_option_strings(self, option):
        """Return a comma-separated list of option strings & metavariables."""
        if option.takes_value():
            metavar = option.metavar or option.dest.upper()
            short_opts = []
            for sopt in option._short_opts:
                short_opts.append(self._short_opt_fmt % (sopt, metavar))
            long_opts = []
            for lopt in option._long_opts:
                long_opts.append(self._long_opt_fmt % (lopt, metavar))
        else:
            short_opts = option._short_opts
            long_opts = option._long_opts

        if self.short_first:
            opts = short_opts + long_opts
        else:
            opts = long_opts + short_opts

        return ", ".join(opts)

def Parser(version):
    """
    Returns an options parser object initialized with the standard
    SCons options.
    """

    formatter = SConsIndentedHelpFormatter(max_help_position=30)

    op = SConsOptionParser(option_class=SConsOption,
                           add_help_option=False,
                           formatter=formatter,
                           usage="usage: scons [OPTION] [TARGET] ...",)

    op.preserve_unknown_options = True
    op.version = version

    # Add the options to the parser we just created.
    #
    # These are in the order we want them to show up in the -H help
    # text, basically alphabetical.  Each op.add_option() call below
    # should have a consistent format:
    #
    #   op.add_option("-L", "--long-option-name",
    #                 nargs=1, type="string",
    #                 dest="long_option_name", default='foo',
    #                 action="callback", callback=opt_long_option,
    #                 help="help text goes here",
    #                 metavar="VAR")
    #
    # Even though the optparse module constructs reasonable default
    # destination names from the long option names, we're going to be
    # explicit about each one for easier readability and so this code
    # will at least show up when grepping the source for option attribute
    # names, or otherwise browsing the source code.

    # options ignored for compatibility
    def opt_ignore(option, opt, value, parser):
        sys.stderr.write("Warning:  ignoring %s option\n" % opt)
    op.add_option("-b", "-d", "-e", "-m", "-S", "-t", "-w",
                  "--environment-overrides",
                  "--no-keep-going",
                  "--no-print-directory",
                  "--print-directory",
                  "--stop",
                  "--touch",
                  action="callback", callback=opt_ignore,
                  help="Ignored for compatibility.")

    op.add_option('-c', '--clean', '--remove',
                  dest="clean", default=False,
                  action="store_true",
                  help="Remove specified targets and dependencies.")

    op.add_option('-C', '--directory',
                  nargs=1, type="string",
                  dest="directory", default=[],
                  action="append",
                  help="Change to DIR before doing anything.",
                  metavar="DIR")

    op.add_option('--cache-debug',
                  nargs=1,
                  dest="cache_debug", default=None,
                  action="store",
                  help="Print CacheDir debug info to FILE.",
                  metavar="FILE")

    op.add_option('--cache-disable', '--no-cache',
                  dest='cache_disable', default=False,
                  action="store_true",
                  help="Do not retrieve built targets from CacheDir.")

    op.add_option('--cache-force', '--cache-populate',
                  dest='cache_force', default=False,
                  action="store_true",
                  help="Copy already-built targets into the CacheDir.")

    op.add_option('--cache-show',
                  dest='cache_show', default=False,
                  action="store_true",
                  help="Print build actions for files from CacheDir.")

    def opt_invalid(group, value, options):
        errmsg  = "`%s' is not a valid %s option type, try:\n" % (value, group)
        return errmsg + "    %s" % ", ".join(options)

    config_options = ["auto", "force" ,"cache"]

    def opt_config(option, opt, value, parser, c_options=config_options):
        if not value in c_options:
            raise OptionValueError(opt_invalid('config', value, c_options))
        setattr(parser.values, option.dest, value)
    opt_config_help = "Controls Configure subsystem: %s." \
                      % ", ".join(config_options)
    op.add_option('--config',
                  nargs=1, type="string",
                  dest="config", default="auto",
                  action="callback", callback=opt_config,
                  help = opt_config_help,
                  metavar="MODE")

    op.add_option('-D',
                  dest="climb_up", default=None,
                  action="store_const", const=2,
                  help="Search up directory tree for SConstruct,       "
                       "build all Default() targets.")

    deprecated_debug_options = {
        "dtree"         : '; please use --tree=derived instead',
        "nomemoizer"    : ' and has no effect',
        "stree"         : '; please use --tree=all,status instead',
        "tree"          : '; please use --tree=all instead',
    }

    debug_options = ["count", "duplicate", "explain", "findlibs",
                     "includes", "memoizer", "memory", "objects",
                     "pdb", "prepare", "presub", "stacktrace",
                     "time"]

    def opt_debug(option, opt, value, parser,
                  debug_options=debug_options,
                  deprecated_debug_options=deprecated_debug_options):
        if value in debug_options:
            parser.values.debug.append(value)
        elif value in deprecated_debug_options.keys():
            parser.values.debug.append(value)
            try:
                parser.values.delayed_warnings
            except AttributeError:
                parser.values.delayed_warnings = []
            msg = deprecated_debug_options[value]
            w = "The --debug=%s option is deprecated%s." % (value, msg)
            t = (SCons.Warnings.DeprecatedDebugOptionsWarning, w)
            parser.values.delayed_warnings.append(t)
        else:
            raise OptionValueError(opt_invalid('debug', value, debug_options))
    opt_debug_help = "Print various types of debugging information: %s." \
                     % ", ".join(debug_options)
    op.add_option('--debug',
                  nargs=1, type="string",
                  dest="debug", default=[],
                  action="callback", callback=opt_debug,
                  help=opt_debug_help,
                  metavar="TYPE")

    def opt_diskcheck(option, opt, value, parser):
        try:
            diskcheck_value = diskcheck_convert(value)
        except ValueError, e:
            raise OptionValueError("`%s' is not a valid diskcheck type" % e)
        setattr(parser.values, option.dest, diskcheck_value)

    op.add_option('--diskcheck',
                  nargs=1, type="string",
                  dest='diskcheck', default=None,
                  action="callback", callback=opt_diskcheck,
                  help="Enable specific on-disk checks.",
                  metavar="TYPE")

    def opt_duplicate(option, opt, value, parser):
        if not value in SCons.Node.FS.Valid_Duplicates:
            raise OptionValueError(opt_invalid('duplication', value,
                                              SCons.Node.FS.Valid_Duplicates))
        setattr(parser.values, option.dest, value)
        # Set the duplicate style right away so it can affect linking
        # of SConscript files.
        SCons.Node.FS.set_duplicate(value)

    opt_duplicate_help = "Set the preferred duplication methods. Must be one of " \
                         + ", ".join(SCons.Node.FS.Valid_Duplicates)

    op.add_option('--duplicate',
                  nargs=1, type="string",
                  dest="duplicate", default='hard-soft-copy',
                  action="callback", callback=opt_duplicate,
                  help=opt_duplicate_help)

    op.add_option('-f', '--file', '--makefile', '--sconstruct',
                  nargs=1, type="string",
                  dest="file", default=[],
                  action="append",
                  help="Read FILE as the top-level SConstruct file.")

    op.add_option('-h', '--help',
                  dest="help", default=False,
                  action="store_true",
                  help="Print defined help message, or this one.")

    op.add_option("-H", "--help-options",
                  action="help",
                  help="Print this message and exit.")

    op.add_option('-i', '--ignore-errors',
                  dest='ignore_errors', default=False,
                  action="store_true",
                  help="Ignore errors from build actions.")

    op.add_option('-I', '--include-dir',
                  nargs=1,
                  dest='include_dir', default=[],
                  action="append",
                  help="Search DIR for imported Python modules.",
                  metavar="DIR")

    op.add_option('--implicit-cache',
                  dest='implicit_cache', default=False,
                  action="store_true",
                  help="Cache implicit dependencies")

    def opt_implicit_deps(option, opt, value, parser):
        setattr(parser.values, 'implicit_cache', True)
        setattr(parser.values, option.dest, True)

    op.add_option('--implicit-deps-changed',
                  dest="implicit_deps_changed", default=False,
                  action="callback", callback=opt_implicit_deps,
                  help="Ignore cached implicit dependencies.")

    op.add_option('--implicit-deps-unchanged',
                  dest="implicit_deps_unchanged", default=False,
                  action="callback", callback=opt_implicit_deps,
                  help="Ignore changes in implicit dependencies.")

    op.add_option('--interact', '--interactive',
                  dest='interactive', default=False,
                  action="store_true",
                  help="Run in interactive mode.")

    op.add_option('-j', '--jobs',
                  nargs=1, type="int",
                  dest="num_jobs", default=1,
                  action="store",
                  help="Allow N jobs at once.",
                  metavar="N")

    op.add_option('-k', '--keep-going',
                  dest='keep_going', default=False,
                  action="store_true",
                  help="Keep going when a target can't be made.")

    op.add_option('--max-drift',
                  nargs=1, type="int",
                  dest='max_drift', default=SCons.Node.FS.default_max_drift,
                  action="store",
                  help="Set maximum system clock drift to N seconds.",
                  metavar="N")

    op.add_option('--md5-chunksize',
                  nargs=1, type="int",
                  dest='md5_chunksize', default=SCons.Node.FS.File.md5_chunksize,
                  action="store",
                  help="Set chunk-size for MD5 signature computation to N kilobytes.",
                  metavar="N")

    op.add_option('-n', '--no-exec', '--just-print', '--dry-run', '--recon',
                  dest='no_exec', default=False,
                  action="store_true",
                  help="Don't build; just print commands.")

    op.add_option('--no-site-dir',
                  dest='no_site_dir', default=False,
                  action="store_true",
                  help="Don't search or use the usual site_scons dir.")

    op.add_option('--profile',
                  nargs=1,
                  dest="profile_file", default=None,
                  action="store",
                  help="Profile SCons and put results in FILE.",
                  metavar="FILE")

    op.add_option('-q', '--question',
                  dest="question", default=False,
                  action="store_true",
                  help="Don't build; exit status says if up to date.")

    op.add_option('-Q',
                  dest='no_progress', default=False,
                  action="store_true",
                  help="Suppress \"Reading/Building\" progress messages.")

    op.add_option('--random',
                  dest="random", default=False,
                  action="store_true",
                  help="Build dependencies in random order.")

    op.add_option('-s', '--silent', '--quiet',
                  dest="silent", default=False,
                  action="store_true",
                  help="Don't print commands.")

    op.add_option('--site-dir',
                  nargs=1,
                  dest='site_dir', default=None,
                  action="store",
                  help="Use DIR instead of the usual site_scons dir.",
                  metavar="DIR")

    op.add_option('--stack-size',
                  nargs=1, type="int",
                  dest='stack_size',
                  action="store",
                  help="Set the stack size of the threads used to run jobs to N kilobytes.",
                  metavar="N")

    op.add_option('--taskmastertrace',
                  nargs=1,
                  dest="taskmastertrace_file", default=None,
                  action="store",
                  help="Trace Node evaluation to FILE.",
                  metavar="FILE")

    tree_options = ["all", "derived", "prune", "status"]

    def opt_tree(option, opt, value, parser, tree_options=tree_options):
        import Main
        tp = Main.TreePrinter()
        for o in value.split(','):
            if o == 'all':
                tp.derived = False
            elif o == 'derived':
                tp.derived = True
            elif o == 'prune':
                tp.prune = True
            elif o == 'status':
                tp.status = True
            else:
                raise OptionValueError(opt_invalid('--tree', o, tree_options))
        parser.values.tree_printers.append(tp)

    opt_tree_help = "Print a dependency tree in various formats: %s." \
                    % ", ".join(tree_options)

    op.add_option('--tree',
                  nargs=1, type="string",
                  dest="tree_printers", default=[],
                  action="callback", callback=opt_tree,
                  help=opt_tree_help,
                  metavar="OPTIONS")

    op.add_option('-u', '--up', '--search-up',
                  dest="climb_up", default=0,
                  action="store_const", const=1,
                  help="Search up directory tree for SConstruct,       "
                       "build targets at or below current directory.")

    op.add_option('-U',
                  dest="climb_up", default=0,
                  action="store_const", const=3,
                  help="Search up directory tree for SConstruct,       "
                       "build Default() targets from local SConscript.")

    def opt_version(option, opt, value, parser):
        sys.stdout.write(parser.version + '\n')
        sys.exit(0)
    op.add_option("-v", "--version",
                  action="callback", callback=opt_version,
                  help="Print the SCons version number and exit.")

    def opt_warn(option, opt, value, parser, tree_options=tree_options):
        if SCons.Util.is_String(value):
            value = value.split(',')
        parser.values.warn.extend(value)

    op.add_option('--warn', '--warning',
                  nargs=1, type="string",
                  dest="warn", default=[],
                  action="callback", callback=opt_warn,
                  help="Enable or disable warnings.",
                  metavar="WARNING-SPEC")

    op.add_option('-Y', '--repository', '--srcdir',
                  nargs=1,
                  dest="repository", default=[],
                  action="append",
                  help="Search REPOSITORY for source and target files.")

    # Options from Make and Cons classic that we do not yet support,
    # but which we may support someday and whose (potential) meanings
    # we don't want to change.  These all get a "the -X option is not
    # yet implemented" message and don't show up in the help output.

    def opt_not_yet(option, opt, value, parser):
        msg = "Warning:  the %s option is not yet implemented\n" % opt
        sys.stderr.write(msg)

    op.add_option('-l', '--load-average', '--max-load',
                  nargs=1, type="float",
                  dest="load_average", default=0,
                  action="callback", callback=opt_not_yet,
                  # action="store",
                  # help="Don't start multiple jobs unless load is below "
                  #      "LOAD-AVERAGE."
                  help=SUPPRESS_HELP)
    op.add_option('--list-actions',
                  dest="list_actions",
                  action="callback", callback=opt_not_yet,
                  # help="Don't build; list files and build actions."
                  help=SUPPRESS_HELP)
    op.add_option('--list-derived',
                  dest="list_derived",
                  action="callback", callback=opt_not_yet,
                  # help="Don't build; list files that would be built."
                  help=SUPPRESS_HELP)
    op.add_option('--list-where',
                  dest="list_where",
                  action="callback", callback=opt_not_yet,
                  # help="Don't build; list files and where defined."
                  help=SUPPRESS_HELP)
    op.add_option('-o', '--old-file', '--assume-old',
                  nargs=1, type="string",
                  dest="old_file", default=[],
                  action="callback", callback=opt_not_yet,
                  # action="append",
                  # help = "Consider FILE to be old; don't rebuild it."
                  help=SUPPRESS_HELP)
    op.add_option('--override',
                  nargs=1, type="string",
                  action="callback", callback=opt_not_yet,
                  dest="override",
                  # help="Override variables as specified in FILE."
                  help=SUPPRESS_HELP)
    op.add_option('-p',
                  action="callback", callback=opt_not_yet,
                  dest="p",
                  # help="Print internal environments/objects."
                  help=SUPPRESS_HELP)
    op.add_option('-r', '-R', '--no-builtin-rules', '--no-builtin-variables',
                  action="callback", callback=opt_not_yet,
                  dest="no_builtin_rules",
                  # help="Clear default environments and variables."
                  help=SUPPRESS_HELP)
    op.add_option('--write-filenames',
                  nargs=1, type="string",
                  dest="write_filenames",
                  action="callback", callback=opt_not_yet,
                  # help="Write all filenames examined into FILE."
                  help=SUPPRESS_HELP)
    op.add_option('-W', '--new-file', '--assume-new', '--what-if',
                  nargs=1, type="string",
                  dest="new_file",
                  action="callback", callback=opt_not_yet,
                  # help="Consider FILE to be changed."
                  help=SUPPRESS_HELP)
    op.add_option('--warn-undefined-variables',
                  dest="warn_undefined_variables",
                  action="callback", callback=opt_not_yet,
                  # help="Warn when an undefined variable is referenced."
                  help=SUPPRESS_HELP)

    return op

# Local Variables:
# tab-width:4
# indent-tabs-mode:nil
# End:
# vim: set expandtab tabstop=4 shiftwidth=4:
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.